65816 Addressing mode: Stack Relative -- d,s
(ADC,AND,CMP,EOR,LDA,ORA,SBC,STA)
(2 bytes) (4 and 5 cycles)
+---------------+------------------+-----------------------+----------+
| Cycle | Address Bus | Data Bus |Read/Write|
+---------------+------------------+-----------------------+----------+
| 1 | PBR,PC | Op Code | R |
| 2 | PBR,PC+1 | Stack Offset | R |
| 3 | PBR,PC+1 | Internal Operation | R |
| 4 | 0,S+SO | Data Low | R/W |
| (1) 4a | 0,S+SO+1 | Data High | R/W |
+---------------+------------------+-----------------------+----------+
(1) Add 1 cycle for M=0 or X=0 (i.e. 16 bit data).
See also: Abbreviations